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Chang-Tzu Chen

Overall (All Time): #1,549,136 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8105276 Disposable safety injection apparatus 2012-01-31
7621888 Safety hypodermic syringe 2009-11-24
6908450 Syringe protective structure Chin-Ping Ting, Chung-Kuei Lin 2005-06-21